diff --git a/appengine/flexible/sendgrid/requirements.txt b/appengine/flexible/sendgrid/requirements.txt
index ff9bf939b1d..225129fc2ca 100644
--- a/appengine/flexible/sendgrid/requirements.txt
+++ b/appengine/flexible/sendgrid/requirements.txt
@@ -1,3 +1,3 @@
 Flask==0.11.1
-sendgrid==3.4.0
+sendgrid==3.6.0
 gunicorn==19.6.0
diff --git a/appengine/standard/sendgrid/requirements.txt b/appengine/standard/sendgrid/requirements.txt
index 63880555fb5..e131127538a 100644
--- a/appengine/standard/sendgrid/requirements.txt
+++ b/appengine/standard/sendgrid/requirements.txt
@@ -1 +1 @@
-sendgrid==3.4.0
+sendgrid==3.6.0
diff --git a/requirements-dev.txt b/requirements-dev.txt
index 0c03a671963..dd35b2523ef 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -56,7 +56,7 @@ requests_toolbelt==0.7.0
 responses==0.5.1
 rsa==3.4.2
 scipy==0.18.1
-sendgrid==3.4.0
+sendgrid==3.6.0
 simplejson==3.8.2
 six==1.10.0
 SQLAlchemy==1.1.1